package cn.itcast.bos.web.action.base;


import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Row;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Controller;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

import cn.itcast.bos.domain.base.Area;
import cn.itcast.bos.service.base.AreaService;
import cn.itcast.bos.utils.PinYin4jUtils;
import cn.itcast.bos.web.action.common.BaseAction;
@ParentPackage("json-default")
@Namespace("/")
@Controller
@Scope("prototype")
public class AreaAction extends BaseAction<Area>{
	
	
	//注入Service
	@Autowired
	private AreaService areaService;
	
	//接受页面上传的file
	private File file;

	public void setFile(File file) {
		this.file = file;
	}
	//批量数据区域导入
	@Action(value="area_batchImport")
	public String batchImport() throws IOException {
		List<Area> areas=new ArrayList<Area>();
		//加载EXCEL文件对象
		HSSFWorkbook hssfWorkbook=new HSSFWorkbook(new FileInputStream(file));
		//读取sheet的第一张表
		HSSFSheet sheet=hssfWorkbook.getSheetAt(0);
		//读取sheet中的每一行
		for (Row row : sheet) {
			if(row.getRowNum()==0) {
				continue;
			}
			//调处单元格空行
			if(row.getCell(0)==null|| StringUtils.isBlank(row.getCell(0).getStringCellValue())) {
				continue;
			}
			Area area=new Area();
			area.setId(row.getCell(0).getStringCellValue());
			area.setProvince(row.getCell(1).getStringCellValue());
			area.setCity(row.getCell(2).getStringCellValue());
			area.setDistrict(row.getCell(3).getStringCellValue());
			area.setPostcode(row.getCell(4).getStringCellValue());
			
			//基于pinyin4j生成城市编码和简码
			String province=area.getProvince();
			String city=area.getCity();
			String district = area.getDistrict();
			province=province.substring(0,province.length()-1);
			city=city.substring(0, city.length()-1);
			district=district.substring(0, district.length()-1);
			
			//简码
			String[] headArray = PinYin4jUtils.getHeadByString(province+city+district);
			StringBuffer buffer=new StringBuffer();
			for (String headStr : headArray) {
				buffer.append(headStr);
			}
			String shortCode = buffer.toString();
			area.setShortcode(shortCode);
			
			//城市编码
			String citycode=PinYin4jUtils.hanziToPinyin(city,"");
			area.setCitycode(citycode);
			areas.add(area);
		}
		//调用业务层
		areaService.saveBatch(areas);
		return NONE;
		
	}
	
	
	@Action(value="area_pageQuery",results={@Result(name="success",type="json")})
	public String pageQuery() {
		Pageable pageable=new PageRequest(page-1,rows);
		//构造分页查询对象
		Specification<Area> specification=new Specification<Area>() {
			
			@Override
			public Predicate toPredicate(Root<Area> root,
					CriteriaQuery<?> query, CriteriaBuilder cb) {
				List<Predicate> list=new ArrayList<Predicate>();
				
				//添加条件
				if(StringUtils.isNotBlank(model.getProvince())) {
					Predicate p1=cb.like(root.get("province").as(String.class), "%"+model.getProvince()+"%");
					list.add(p1);
				}
				if(StringUtils.isNotBlank(model.getCity())) {
					Predicate p2=cb.like(root.get("city").as(String.class), "%"+model.getCity()+"%");
					list.add(p2);
				}
				if(StringUtils.isNotBlank(model.getDistrict())) {
					Predicate p3=cb.like(root.get("district").as(String.class), "%"+model.getDistrict()+"%");
					list.add(p3);
				}
				//如果返回null代表无条件查询
				return cb.and(list.toArray(new Predicate[0]));
				
				
			}
		};
		//调用业务层
		Page<Area> page=areaService.findPageData(specification,pageable);
		pushPageDataToValueStack(page);
		return SUCCESS;
		
	}
	
		
	
}
